netdev - Re: [NET-NEXT v4 PATCH 1/5] ixgbe: this patch adds support for DCB to the kernel and ixgbe driver

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Date:	Fri, 21 Nov 2008 14:06:52 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
CC:	davem@...emloft.net, netdev@...r.kernel.org, jeff@...zik.org,
	Alexander Duyck <alexander.h.duyck@...el.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
Subject: Re: [NET-NEXT v4 PATCH 1/5] ixgbe: this patch adds support for DCB
 to the	kernel and ixgbe driver

Jeff Kirsher wrote:
> From: Alexander Duyck <alexander.h.duyck@...el.com>
> 
> This adds support for Data Center Bridging (DCB) features in the ixgbe driver and adds an rtnetlink interface for configuring DCB to the kernel.  The DCB feature support included are Priority Grouping (PG) - which allows bandwidth guarantees to be allocated to groups to traffic based on the 802.1q priority, and Priority Based Flow Control (PFC) - which introduces a new MAC control PAUSE frame which works at granularity of the 802.1p priority instead of the link (IEEE 802.3x).
> 
> --- /dev/null
> +++ b/net/dcb/Kconfig
> @@ -0,0 +1,12 @@
> +config DCB
> +        tristate "Data Center Bridging support"

A help text would be nice to have.

> +
> +config DCBNL
> +	bool "Data Center Bridging netlink interface support"
> +	depends on DCB
> +	default n
> +	---help---
> +	  This option turns on the netlink interface
> +	  (dcbnl) for Data Center Bridging capable devices.
> +
> +	  If unsure, say N.
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